//AS3///////////////////////////////////////////////////////////////////////////
// 
// Copyright(c) 2010 180heartbeats. All rights reserved.
// Please read this carefully before using the source code.
// 
// Redistribution and use in source and binary forms, with or without 
// modification, are permitted provided that the following conditions are
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// * Redistributions of source code must retain the above copyright notice, 
//   this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above copyright
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//   this software without specific prior written permission.
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////////////////////////////////////////////////////////////////////////////////

package com.heartbeats.translate {
	import flash.net.URLLoaderDataFormat;
	import flash.net.URLRequest;
	import flash.events.Event;
	import flash.net.URLLoader;
	import flash.display.Loader;
	import com.adobe.serialization.json.JSON;

	import flash.events.EventDispatcher;
	import flash.events.IEventDispatcher;

	/**
	 * Implementacja Google Translate
	 * 
	 * @langversion ActionScript 3.0
	 * @playerversion Flash 9.0
	 * 
	 * @author Piotr Mederak
	 */

	public class Translate extends EventDispatcher {
		public function Translate(target:IEventDispatcher = null) {
			super(target);
		}

		/**
		 * @param description Tresc do przetlumaczenia
		 * @param fromLanguage Z jakiego jezyka
		 * @param toLanguage Na jaki jezyk
		 */
		public function translate(description:String,fromLanguage:String = 'pl', toLanguage:String = 'en'):void {
			var loader:URLLoader = new URLLoader();
			loader.dataFormat = URLLoaderDataFormat.TEXT;
			
			loader.addEventListener(Event.COMPLETE, onTranslateComplete);
			loader.load(new URLRequest('http://ajax.googleapis.com/ajax/services/language/translate?v=1.0&q=' + encodeURI(description) + '&langpair=' + fromLanguage + '|' + toLanguage));
			
		}

		private function onTranslateComplete(event:Event):void {
			var data:String = (event.currentTarget as URLLoader).data;

			var response:Object = JSON.decode(data);
			
			var translateText:String;
			if(response['responseData'] == null) {
				translateText = '';
			} else {			
				translateText = response['responseData']['translatedText'] as String;
			}
			
			this.dispatchEvent(new TranslateEvent(TranslateEvent.COMPLETE, translateText));
		}
	}
}
